Liao Wenbo, Cao Shun, Jiang Ying, Shao Weijie, Zhao Li, Yan Chengzhi
Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong 637009, China.
Key Laboratory of Artificial Propagation and Utilization in Anurans of Nanchong City, China West Normal University, Nanchong 637009, China.
Animals (Basel). 2024 Aug 7;14(16):2300. doi: 10.3390/ani14162300.
Climate change promotes variations in distribution ranges, potentially leading to biodiversity loss and increased extinction risks for species. It is crucial to investigate these variations under future climate change scenarios for effective biodiversity conservation. Here, we studied the future distribution ranges of 268 Testudoformes species under climate change using habitat models, specifically species distribution models (SDMs), to assess their conservation status. Our results have indicated that over half of species are projected to experience declines in their potential distribution ranges under two scenarios. In particular, we found that three critically endangered species-Three-striped roofed turtle (), Durango mud turtle (), and Colombian mud turtle ()-displayed extraction of their distribution ranges and faced extinction under global climate change. Additionally, our analysis revealed that the potential distribution ranges of some species might increase under future climate scenarios. However, these findings must be interpreted with caution as they do not account for other significant factors such as biological invasions, population structure, land-use change, anthropogenic disturbances, and inter-organism interrelationships. Future studies should incorporate these factors to provide a more comprehensive assessment of extinction risks. Our findings suggest that climate change, in conjunction with habitat degradation and human activities, must be considered when assessing the extinction risks of Testudoformes.
气候变化促使分布范围发生变化,可能导致生物多样性丧失以及物种灭绝风险增加。在未来气候变化情景下研究这些变化对于有效的生物多样性保护至关重要。在此,我们利用栖息地模型,特别是物种分布模型(SDMs),研究了268种陆龟目物种在气候变化下的未来分布范围,以评估它们的保护状况。我们的结果表明,在两种情景下,预计超过一半的物种其潜在分布范围将会缩小。特别是,我们发现三种极度濒危物种——三棱黑龟()、杜兰戈泥龟()和哥伦比亚泥龟()——其分布范围正在缩减,并且在全球气候变化下面临灭绝。此外,我们的分析表明,在未来气候情景下,一些物种的潜在分布范围可能会扩大。然而,这些发现必须谨慎解读,因为它们没有考虑到其他重要因素,如生物入侵、种群结构、土地利用变化、人为干扰以及生物间的相互关系。未来的研究应纳入这些因素,以更全面地评估灭绝风险。我们的研究结果表明,在评估陆龟目的灭绝风险时,必须考虑气候变化以及栖息地退化和人类活动。